Optical device for producing a minute light beam
First Claim
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1. An optical device for producing a minute beam, comprising:
- means for producing a beam;
means for forming the beam produced by said beam producing means into a beam of an oval annular cross-section;
means for condensing the oval annular beam formed by said beam forming means, onto a focal plane thereof to form a linear image thereon having a substantially uniform distribution of light energy along its length.
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Abstract
An optical device for producing a minute beam comprises beam forming means such as laser generator or the like, annular beam forming means such as lens or annular aperture mask for forming the beam from the beam forming means into a beam of annular cross section, and a condenser lens for condensing the annular beam from the annular beam forming means.
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Citations
9 Claims
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1. An optical device for producing a minute beam, comprising:
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means for producing a beam; means for forming the beam produced by said beam producing means into a beam of an oval annular cross-section; means for condensing the oval annular beam formed by said beam forming means, onto a focal plane thereof to form a linear image thereon having a substantially uniform distribution of light energy along its length. - View Dependent Claims (2, 3, 4, 5)
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6. An optical device for producing a minute beam, comprising:
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means for producing a beam; means for forming the beam produced by said beam producing means into a beam of an annular cross-section; means for diffusing the annular beam formed by said annular beam forming means, in only one direction to deform the annular beam into a beam of an oval annular cross-section; and means for condensing the oval annular beam formed by said beam forming means, onto a focal plane thereof to form a linear image thereon having a substantially uniform distribution of light energy along its length. - View Dependent Claims (7, 8, 9)
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Specification